Bull-wheel.



V. 0. ZAHNISER.

BULL WHEEL.

APPLICATION FILED JUNE 4.1914.

1 ,14:3 ,01 2. I Patented June 15, 1915.

2 SHEETSSHEET I.

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THE NORRIS PETERS c0, PHOTO-L!THO.. WASHINGTON, D. C.

v. 0. ZAHNISERQ BULL WHEEL.

APPLICATION FlLED JUNE 4. 1914.

Patented M11615, 1915.

2 SHEETS-SHEET 2.

amc/who'o I THE NORRIS PETERS 50.. PHOTO LITHO.. WASHINGTON. D C

FFTE.

VALENTINE 0. ZAHNISEB, OF WASHINGTON, PENNSYLVANIA.

BULL-WHEEL.

Specification of Letters Patent. Patented June 15, 191.5.

Application filed. June 4, 1914. Serial No. 842,993.

To all whom it may concern:

Be it known that I, VALENTINE O. ZAHN- ISER, a citizen of the United States, residing at Washington, in the county of Washington and State of Pennsylvania, have invented certain new and useful Improvements in Bull-VVheels; and I do. declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. V

This invention relates to the art of oil and Artesian well drilling and more particularly to the bull wheels employed for raising and lowering the tools. Wheels of this character are ordinarily j ournaled to rotate freely uponthe sills of a well boring derrick or-in close proximity thereto, are equipped with the usual bull rope or ropes and drilling cable, and are periodically driven by the bull rope for the purpose of coiling or reeling the drilling cable.

' The object of this invention is to provide improved means for attaching the wheels to the shaft or coiling drum and to improve the general construction of the wheel.

With theabove and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts as will be more fully described and claimed.

In the accompanying drawings: Figure 1- spokes with one of the cant connecting sockets arranged in juxtaposition ready for engagement therewith; and Fig. 6 is a detail vertical transverse section showing a slightly modified form of tug wheel.

In the embodiment illustrated, a main shaft or coiling drum 1 is shown composed of a pipe having gudgeons 2 shrunken into the ends thereof and which are designed to rotatably support the wheel in supports not shown. Fixed to one end of said drum 1 is a driving or tug wheel 3 which comprises a hub 41: and spokes 5 composed of a plurality of sections or members 6, each constructed of flat steel bars, and four being here shown.

Each member 6 is substantially U-shaped as shown in Fig. 5 and each comprises an arcuate section or segment of the hub and two arms or spoke members. Each of these U- shaped members 6 has the arcuate cross bar 7 thereof curved inwardly to conform to the curvature of the pipe 1 to which it is to be applied to form a hub section. The inner portion of the arm on each end of each bar 7 is inclined outwardly asshown at 8 and apertured to receive bolts for connecting them with adjacent members and the curved portions 7 thereof'are also apertured for the passage of the bolts 9 which secure said members to the pipe or drum 1.

The outer or body portions 10 of the arms of the members 6 preferably diverge slightly and the terminals 11 thereof are inclined slightly outward. Four of these members 6 are here shown which when assembled, in operative position on the drum 1, have their inclined arm portions 8 positioned in close contact to form reinforced spoke members and which are secured together by bolts or other suitable fastening elements. When these member are so secured, the arms 10 of .adjacent members diverge and form Y- shaped spokes with V-shaped spaces 10 between the outer ends thereof. By this arrangement four Y-shaped spokes 5 are provided to the free ends of which are secured peripherally grooved cants 12 which are preferably composed of wood and are secured to connecting members 13 mounted on the ends of said spokes. The members include laterally disposed apertured plates 13 and 13? which extend in opposite directions from the outer ends of the body portions 13 and are designed to be secured to the inner faces of the cants 12 by bolts or screws which pass through the apertures in said plates 13* and 13 and enter said cants. The members 13 fit over the free ends of the arms 10 and are secured thereto in any suitable manner, bolts being here shown for this purpose. When these cants 12 are assembled, the grooves in the working faces there of provide a continuous rope groove 1 1 for the reception of the bull rope (not shown). In the form shown in Figs. 1 to 5, one bull rope groove is illustrated while in Fig. 6, two grooves are shown. Arranged on opposite sides of the cants 12, when the latter are assembled, are annular clamping plates 17 and 18, each preferably composed of segprotecting them. These plates 17 and 18- are secured in operative position by bolts or rivets 19 which pass transversely through the plates at opposite sides of the wheel and through the cants disposed between them.

In the form shown in Fig. 6, the cants 12 have two parallel peripheral grooves 1% 14: to receive two bull ropes. Otherwise, the

' construction of this form of rim is the same as that in the other figures. a. This wheel is preferably secured to. the shaft 1 by passing the bolts 9 diagonally through said shaft so that each bolt passes through two diametrically disposed hub sections 7 and which reliably and securely secured to fasten the wheel to the shaft. the other end of the shaft 1 is a brake wheel 15, the construction of which is similar to that of the" tug wheel with the exception that plain cants are used for form- 7 ing the rim instead of grooved c'ants and on which is designed to be mounted a brake band for controlling the unwinding of the ling cable.

16 respectively for use in manually rotat- Projecting from the rim of the tug or drive wheel .3 preferably on the inside and from the rim ofthe brake wheel preferably on the outside, are a plurality of pins 16 and ing said wheels when desired. The pins 16 are employed for rotating the drive wheel when the bull rope has been thrown off or requires replacing and the'pins 16 for ro- (Topics of this patent may he obtained for nesses.

tilting hebrake wheel when the brake band isout of operation.

In the use of this bull wheel which is lo:

cated adjacent to a stationary engine or! other source of power, motion is imparted to the drive wheel 3 when required by means Yof a bull rope thrown into the groove H whereby said wheel is rotated in theusual' manner, The drillrope will then be rapidly coiled upon the drum 1 thus elevating the drill or other tool quickly from a well.

When it is desired" to'return'the same tool or another into the well, the drum 1 will un reel'under' the weightlofi the tool carried by the end of the drillropeand. said rope and tool are held in check by a suitable band or. .j other form of brake applied to the surface:

of the brake'wheel .15. 7 I claim as my inventionz] I' A pulley wheel for well rigs comprising a rim, a plurality ofsubstantially U-shaped.

sections with rim engaging means at the outer ends of their arms, each arm progeeting radially inward from the rim, a short distance and then obliquely outward from the radius, but in the'same plane therewith until contacting with the armof its adjacent section, and from which'point ofcon- 1 tact radially inward and parallel with the said contacting" arm to a plurality of arcuate hub engaging members forming thebase of said U-shaped sections, and means for securing the adjacent parallel arms together.

In testimony whereof l jhave hereunto set my hand in presence of two subscribing wit- Witnesses:

HARRY Moons, g LEWISC. SQ DA.

five cents each, by addressing the ."Go;nmiss1on er 0! Patents, 7 Washington, D. C.

VALENT NE o. ZAHNISEB. 

